将URL图像显示到JPanel中

import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class ImageDisplay extends JPanel {
    private BufferedImage image;

    public ImageDisplay() {
        try {
            // 获取URL图像
            URL imageUrl = new URL("https://example.com/image.jpg");
            image = ImageIO.read(imageUrl);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        // 绘制图像
        g.drawImage(image, 0, 0, null);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Image Display");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 400);

        ImageDisplay panel = new ImageDisplay();
        frame.add(panel);

        frame.setVisible(true);
    }
}